/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundBuilderSubsystem.h
Moving toward becoming UFUNCTIONS in the future, but right now unguarded case where a user could improperly reference transient assets. Also, unsafe where legacy controller system are potentially mutating and not notifying delegates appropriately.
[UMetaSoundPatchBuilder](API\Plugins\MetasoundEngine\UMetaSoundPatchBuilder) * AttachPatchBuilderToAsset ( [UMetaSoundPatch](API\Plugins\MetasoundEngine\UMetaSoundPatch) * InPatch ) const